To a major initiative by major league baseball to combat homophobia in the big leagues and ABC's Paula Faris has the story. Reporter: This morning, just hours before the all-star game, ABC news has learned major league baseball is poised to make what should be a game-changing announcement, regarding inclusion of gay players. While the league has never had an active openly gay player some have come out publicly after retirement like glen Burke who will be honored by major league baseball commissioner bud Selig at today's press conference and Billy Beane. And here is Billy Beane. Reporter: Beane played for six seasons before coming out and is now working with the league on its efforts. The challenges are to make sure every individual knows that they have a welcome and inclusive environment. Reporter: The league has banned discrimination based on sexual orientation since 2011 but MLB tells ABC news as the sport of Jackie Robinson the principles of equality and inclusion are bedrocks of the game." 2014 is a year of first of gays in sports. Jason Collins became the first openly gay player in the NBA. In may, the St. Louis rams drafted Michael Sam making him the first openly gay player in the NFL. Something he spoke with robin about. I think I could be a beacon for those people, the light. Hey, I could comfortable in my own skin. Reporter: Now, major league baseball has never had an active openly gay player but today's announcement expected this afternoon is just the next step in creating an environment of tolerance and inclusion. It's only a matter of time. We want to make these players feel comfortable. Starting at the top with bud Selig. He has been out front in this inclusion. Good to have you back, Paula.

This transcript has been automatically generated and may not be 100% accurate.

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